"Yes pretty much the same here, tried logging out of Tapatalk and logging back in again but the app won't let me log back in. I just get a notification saying 'System message, sign in failed."
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"There are a few other threads where this has been discussed. When we have CloudFlare's enhanced security features (human verification) turned to stop the AI bots from bogging down the site, it doesn't play nice with Tapatalk. Tapatalk needs to update their app and/or forum plugin to support CloudFlare human verification, the issue is on their end."